Occasionally when down shifting or coming to a stop at a light or whatever the car wants to die out on me. I usually have to hit the gas before it stalls out on me. It dosen't happen everytime I come to a stop but it does happen frequently. The car idles at around 800 rpms. The last time it happened it wouldn't start. I called the guy that did my motor and he said to hold the gas pedal to the floor and turn it over until it started. It started right away. He said the injectors were overloaded. None of this shit used to happen before I put the S/C on. Any suggestions of what could be going on????